How do you discover a need that nobody yet knows about? This is where the product breakthroughs come through.

Will robot teachers replace human teachers? No, but they can complement them. Moreover, the could be sufficient in situations where there is no alternative––to enable learning while traveling, or while in remote locations, or when one wishes to study a topic for which there is not easy access to teachers. Robot teachers will help make lifelong learning a practicality. They can make it possible to learn no matter where one is in the world, no matter the time of day. Learning should take place when it is needed, when the learner is interested, not according to some arbitrary, fixed schedule

A challenge to the designers of the world: Make signs unnecessary.

If you think the products don't match what you want from a product, don't buy it.

You won't catch me giving clear lectures.

I think there is a tendency in science to measure what is measurable and to decide that what you cannot measure must be uninteresting.

Attractive things work better.